Supporting-pulleys for belt conveyers.



PATENTED NOV. 5, 1907.

E. J. HADDOGK. SUPPORTING PULLEYS FOB. BELT GONVEYERS.

APPLICATION FILED AUG. 7, 1907.

UNITED STATES PATENT OFFICE.

EDWIN I. HADDOCK, OF COLUMBUS, OHIO, ASSIGNOR TO JOSEPH A. JEFFREY.

SUPPORTING-PULLEYS FOR BELT GONVEYERS.

Specification of Letters Patent.

Patented Nov. 5, 1907.

Application filed August '7. 1907. Serial No. 387,542.

To all whom it may concern:

Be it known that I, EDWIN J. HADDocK, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Supporting-Pulleys for Belt Gonveyers, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to improvements in the supporting and guiding devices which are employed to sustain conveyor belting, particularly the rubber belting which is now largely used for the carrying of materials from place to place.

Figure 1 is a side elevation of one of the supporting elements in an apparatus embodying my improvements, showing the belt, in section. Fig. 2 is a plan view of the parts illustrated in Fig. 1. Fig. 3 is a vertical transverse section upon the line a: :0, Fig. 2. Fig. 4 is a side view of the bracket which is used to support the rollers. Fig. 5 is a plan view. Fig. 6 is an end view.

In the drawings A, A, indicate inclined rollers, and B a horizontal roller, of which one is generally combined with two of the inclined rollers to constitute one of the supporting elements.

C indicates the supporting device of bracket for carrying all of these rollers of one of the belt supporting elements, and D indicates a part of the wooden or other frame-work upon which the conveyer is mounted.

The inclined rollers A are each mounted upon an inclined shaft 1 which is tubular or pipe-like. Each of these shafts is mounted in a socket 2, formed integral with the bracket C. This bracket extends from one side to the other of the central longitudinal vertical plane of the conv eyer, all the rollers of each supporting element being sustained in a common holder. This holder or bracket has the cross connecting plate 5, the upright longitudinally arranged webs 3, 3, the oppositely disposed inclined sockets 2, and the oppositely arranged horizontal sockets 4. By forming all of these parts of the support for the pulley or rollers in this way I provide for insuring that the mountings shall all be true in relation to each other. It will be understood that in order to hold the belt properly in place upon the rollers it is necessary that they should be mounted with mathematical accuracy. when the bracket or holder is constructed in the way which I have devised,

' the shaft holders or sockets at 4 can be machined so that the shaft apertures therein shall be perfectly parallel to the plane of the axes of the sockets 2.

The webs or flanges 3 insure a bracing of the sockets at l, 4, in relation to those at 2. In the constructions where the rollers A are mounted in independent brackets it has been found that from the warping or twisting of the frame-structure they are thrown out of the desired alinement and consequently the belt does not run uniformly on the two sides of its center line. When the carrier or bracket for the supporting element is made in the way herein provided, both edges of the belt are carried with uniformity.

Another advantage attained by having the roller support formed in the way which I have described is that I can effect a uniform distribution of the lubricant over all surfaces where relative movement occurs. E indicates the cups or receptacles for initially receiving the oil or grease. These are secured to the upper ends of the inclined shafts 1. Each of these has a longitudinal passage 9 (the shaft being preferably formed of a section of tubing). The chamber or duct in the shaft communicates with the lubricant channel 9, which is formed by coring the upper part of the web 3. These channels 9 in turn communicate with the chamber 9 in the interior of the shaft 6 upon which the roller B is mounted. This shaft 6 is also preferably a tube section, firmly secured by set screws 8 in the sockets or bearings 4. Its ends are closed by plugs 7 and it is provided with aperutres 9 registering with the channels 9 At 6 there are apertures formed through the wall of this shaft to permit the lubricant to reach the exterior surface of the shaft and lubricate the hub of the pulley B which revolves thereon. l0, 10 are collars on the shaft 6 interposed between the ends of the hub of the pulley B and the sockets 4.

When the parts are constructed and arranged in the way which I have shown and described, it will be seen that the oil or lubricant tends to pass downward through the hollow shafts l, and thence across, through the channels 9, to the interior of the hollow shaft 6. Some of it escapes through the apertures 11 to the exterior surface of the shafts 1 for lubricating the pulleys A, and some of it, as above described, passes through the apertures 6* to lubricate the pulley B.

What I claim is:

-1. In a supporting element for a belt conveyer, the combination with the inclined pulleys A, A, with their axes in the same transverse vertical plane, and the horizontal pulley B with its axis in a plane behind the plane of the axes of the pulleys A, of the support or bracket for the said pulleys having the plate 5, the webs or standard plates 3, horizontal sockets or bearings 4, and the in clined sockets or hearings 2 all formed integrally together,

and the axis of the sockets or bearings 4 being parallel to the plane or the axes of the sockets 2, 2, substantially as set forth.

27 In a supporting element for a belt conveyer, the combination with the inclined pulleys A, A, having their axes in a common transverse vertical plane and the horizontal 9 and the horizontal shaft 6 communicating with both of 16 pulley B having its axis behind the plane of the axes of the said channels 9, substantially as set forth.

the pulleys A, of the support or bracket for all of said In testimony whereof I afiix my signature, in presence pulleys having a cross connecting plate 5, the side webs or of two witnesses. v standard walls 3, the inclined sockets 2, and the hori- EDWIN J HADDOCK zontal sockets 4, all formed integrally together with the lubricant channels 9 each communicating with the interior Witnesses: l

of a socket 2 and the interior of a socket 4, the inclined LENO M. COLWELL,

shafts each communicating with one of the said channels I J. E. MCDONALD. 

